iOS开发——UI篇&九宫格算法

 1 /*
 2  * 总列数
 3  */
 4 NSUInteger totalloc = 3;
 5 
 6 /*
 7  * View的宽高
 8  */
 9 CGFloat shopW = 80;
10 CGFloat shopH = 100;
11 
12 /*
13  * 每个View之间的间隔
14  */
15 CGFloat margin = (self.view.frame.size.width - totalloc * shopW) / (totalloc + 1);
16 
17 /*
18  * View的总个数
19  */
20 NSUInteger count = 12;
21 
22 /*
23  *  根据总个数使用总列数来除和取余获取对应的行和列
24  */
25 NSUInteger loc = count / totalloc;
26 NSUInteger row = count % totalloc;
27 
28 /*
29  * View的X和Y
30  */
31 CGFloat shopX = margin + (margin + shopW) * row;
32 CGFloat shopY = margin + (margin + shopH) * loc;
33 
34 
35 /*
36  * 创建自定义View，设置背景颜色，添加到界面上去
37  */
38  UIView *shopV = [[UIView alloc] initWithFrame:CGRectMake(shopX, shopY, shopW, shopH)];
39  shopV.backgroundColor = [UIColor lightGrayColor];
40  [self.shopView addSubview:shopV];
41 
42 /*
43  *  创建UIImageView用于放置图片，设置frame然后加到自定义的View上面
44  */
45  UIImageView *imageV = [[UIImageView alloc] init];
46  imageV.frame = CGRectMake(0, 0, 80, 80);
47  [shopV addSubview:imageV];
48 
49 /*
50  *  创建UILabel用于放置显示文字，设置frame然后加到自定义的View上面
51  */
52  UILabel *l = [[UILabel alloc] init];
53  l.frame = CGRectMake(0, 80, 80, 20);
54  l.textAlignment = NSTextAlignmentCenter;
55  [shopV addSubview:l];